[sdk] add neko activate; update haxe activate

template/neko/activate

@@ -0,0 +1,69 @@
+# From python venv activate
+
+deactivate () {
+    # reset old environment variables
+    # ! [ -z ${VAR+_} ] returns true if VAR is declared at all
+    if ! [ -z "${_OLD_NEKO_VIRTUAL_PATH+_}" ] ; then
+        PATH="$_OLD_NEKO_VIRTUAL_PATH"
+        export PATH
+        unset _OLD_NEKO_VIRTUAL_PATH
+    fi
+    if ! [ -z "${_OLD_VIRTUAL_LD_LIBRARY_PATH+_}" ] ; then
+        LD_LIBRARY_PATH="$_OLD_VIRTUAL_LD_LIBRARY_PATH"
+        export LD_LIBRARY_PATH
+        unset _OLD_VIRTUAL_LD_LIBRARY_PATH
+    fi
+
+    # This should detect bash and zsh, which have a hash command that must
+    # be called to get it to forget past commands.  Without forgetting
+    # past commands the $PATH changes we made may not be respected
+    if [ -n "${BASH-}" ] || [ -n "${ZSH_VERSION-}" ] ; then
+        hash -r 2>/dev/null
+    fi
+
+    if ! [ -z "${_OLD_NEKO_VIRTUAL_PS1+_}" ] ; then
+        PS1="$_OLD_NEKO_VIRTUAL_PS1"
+        export PS1
+        unset _OLD_NEKO_VIRTUAL_PS1
+    fi
+
+    unset NEKO_HOME
+    if [ ! "${1-}" = "nondestructive" ] ; then
+    # Self destruct!
+        unset -f deactivate
+    fi
+}
+
+# unset irrelevant variables
+deactivate nondestructive
+
+NEKO_HOME="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
+export NEKO_HOME
+
+NEKO_STD_PATH="${NEKO_HOME}/std"
+export NEKO_STD_PATH
+
+_OLD_NEKO_VIRTUAL_PATH="$PATH"
+PATH="${PATH}:${NEKO_HOME}"
+export PATH
+
+_OLD_VIRTUAL_LD_LIBRARY_PATH="$PATH"
+LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${NEKO_HOME}"
+export LD_LIBRARY_PATH
+
+if [ -z "${NEKO_DISABLE_PROMPT-}" ] ; then
+    _OLD_NEKO_VIRTUAL_PS1="$PS1"
+    if [ "x" != x ] ; then
+        PS1="$PS1"
+    else
+        PS1="(neko) $PS1"
+    fi
+    export PS1
+fi
+
+# This should detect bash and zsh, which have a hash command that must
+# be called to get it to forget past commands.  Without forgetting
+# past commands the $PATH changes we made may not be respected
+if [ -n "${BASH-}" ] || [ -n "${ZSH_VERSION-}" ] ; then
+    hash -r 2>/dev/null
+fi